Re: Building Instructions

Hi,

Thanks Herb - that is even better than I had hoped for! I will post some pics of the stripped down plane. I received two Moki fans with damaged impellers (replaced with Wemotec midi fans) with two Mega 22./20/3 motors and the older (red) Jeti controllers. I will be limited to about 4S on that setup, and may want to run on 5S. Need to test the amp draw first, as motor would probably overheat on anything more than 800w. I see that most guys are running fairly hot setups, but do not intend to fly it like a pylon racer!

Mine has 6.8kg flying weight. And I´m using the e-flite retracts with robart struts.
The gear has his own electric circuit, directly powered by a 2s 1000mAh pack. It is good for around 200 cycles. The System is working fine and holds up since ten flights so far. Taking off grass.
My cg is at 140mm back from the point where the wing meets the fuse with
gear up.
I am using MOKI Impeller with WeMoTec MIDI Rotors on Mega 22/20/3
with 5s5200er each side. 4.1kg of thrust.
No problems with around 1000W per Motor so far. Ampdraw approx. 55-56Amps.
Due to the low wing loading and the 4" whells all around the plane takes off from grass easily.
Even my first AW Me 262 flew with this setup with 7.4kg TOW from grass.
I personally think, you can go up to 8kg, if you have a hard surface runway.

Re: ESC and motors

Herb,

I must admit I was not very impressed with the 100A Turnigy controllers, although the red 80A Plush controllers have proved to be reliable. Hopefully the 120A and Super Brain will be better, but i would rather not risk it in a new plane (also suspect I may have the only Airworld ME 262 in South Africa)

Based on the info provided on your build thread it seems that I would be OK on the Mega 22/20/3 motors and 5S lipos (although I have standardised on 6 & 12S lipos) as I also have 2x80A plush controllers available. May be cheaper to buy new motors than new batteries! Hopefully i would be able to run some tests on the motor/fans over the weekend, and take it from there.

Just a quick comment - I noted on one of the pics that the controller was mounted in the impeller unit. Good for cooling, but it is a very bad idea to extend wires between batteries and controller ("back EMF" issues). I popped a very good controller in my Dakota that way ;-(

Thanks for info - pleased to hear that you are happy with Turnigy controlllers - i did not have much luck with the 100A Sentilon. Subsequently found out that they are very sensitive to input voltage - too high or too low any they do not arm. Maybe i should try the new 120A controller that you recommended!

Nice pics that you posted, first plane looks very much like a F86! I am also building one from an old (unbuilt) Byron ducted fan kit, but also have no info on control surface throws, CG etc. Want to finish 262 before I start on that one though.

Images

This past weekend I did find some time to work on my impressionistic rendition of the Me-262 cockpit. It is very simple, scratchbuilt out of balsa and foam, except of course for the pilot. It's called modeling, right ?

I thought I wanted it to be really light and low profile. So it would not take up too much space inside the fuse where the rest of the electronics is located, and where the escs need all the airflow they can get.

For now the cockpit tub is made to be removable, so I can take it out any time to dust it , or fix the parts that have fallen off (like the pilot ) , or even have a fancier cockpit when time allows after some test flights.

On other edfs I have there's always something that either gets loose, falls off or fades after a few flights.